MacBook Pro (14-inch and 16-inch, Nov 2023) Battery Management Unit Flex Cable
Before You Begin
Warning
Read Battery Safety and follow workspace and battery handling guidelines before you begin.
Remove the following part before you begin:
![location of the battery management unit (BMU) flex cable](https://cdsassets.apple.com/live/SZLF0YNV/service-documentation/macbook-pro/103909/103909_BC_Battery_Locator.jpg)
Tools
ESD-safe tweezers
Nylon probe (black stick)
Refer to a full list of tools required for all repairs.
Removal
Gently fold back the trackpad flex cable to access the BMU flex cable.
Use ESD-safe tweezers to peel back the polyester film tab from the locking lever of the BMU flex cable.
Use the black stick to flip up the locking lever of the BMU flex cable connector.
Use ESD-safe tweezers to gently slide the end of the BMU flex cable out of the connector.
Reassembly
Use ESD-safe tweezers to slide the end of the BMU flex cable into the connector.
Use the black stick to flip down the locking lever on the BMU flex cable connector.
Press the polyester film tab over the connector.
Reinstall the following part to complete reassembly: